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sometimes the memory inside the tv are malfunctioning...try first on the menu settings,on the chanel list all must be ADD (not skip)...if already done,try to cOnsult on well trained technician.WISH U LUCK

If the TV is powered off and still does not change from the channel 2 position then it is possible that the processor has crashed or that the memory has gone sticky.So if you are not able to reset the menu and do a fresh tuning and scan , the processor/memory is faulty.

Hi
It sounds like a signal problem, I'm assuming its Freeview channels you are dropping, I have had the same problem on some of my TV's especially since the re-tuning channel 5 fiasco. Have you tried Re-tuning the DVB-tuner from the freeview menu, then settings or set-up or installation, then choosing the First Time Install option as it will wipe all previous channels.
If you have a portable you can try it on the same aerial see if you have the same problem with that, then if it is the signal, buy a booster and put that on the RF input, which is what I did with the same problem.
I am in a poor signal area and have had to have my aerial raised to get even an average signal.

Press the [i+] or MENU button on the remote control to display the DIGITAL INFO menu.

Press the BLUE button to display the MAIN MENU.

Press the UP or DOWN buttons to highlight AUTO TUNING then press the OK button to display the AUTO TUNING MENU.

Press the RED button to start the auto tuning process for all available digital channels.

Wait for the process to complete.

If you wish to CANCEL the auto tuning process whilst it is processing then press the BLUE button at any time.You may lose some channels when you retune the TV as the channels have been rearranged. To locate them look at the EPG although you may still find that some channels are no longer available on FREEVIEW. See the following link for additional informationhttp://www.freeview.co.uk/_retuneinfo/

Hi there!
Check the system setting for your area.(BG,DK,I,etc.) Located in the Menu or option when Tuning. If this does nopt solve it, you have an internal fault which should be repaired by a repair technician in your area. Good Luck, JUS004

George, your tv`s tuning system is set to "air", (roof top antenna) you need to go into your menu and change it to "cable", then do "autoprogram" again and it will add the channels above 13. You really should order the original remote for yourself, you can probably get one here; www.partstore.com Good Luck and Happy Holidays

Is the cable remote a programmable universal? If so, just a matter of finding the codes to reprogram functions.
Concerning the "tuning video", are you saying that you can't get to different input sources?